Hi Vidi, This is normal.
Most receivers have out-of-band receive responses that are created by high-order harmonics of the VFO, BFO, and other signal sources. The K3 is no exception, since it's a down-conversion superhet using high- level injection. Generally these responses will be inaudible because they never appear right at the I.F. (~8.215 MHz in the case of the K3). The P3, which gets its signal *before* the crystal filters, can display a much wider I.F. bandwidth. So some receive responses you'd never hear may show up in the P3's passband. In theory, we could map these out at the P3, but it's a complex equation involving the frequencies of the signal sources, crystal filter center frequencies, selected sideband, passband center pitch, etc. 73, Wayne N6KR Vidi wrote: > I noticed that on 17.6792mHz there is a strange ghost signal visible > on the P3. As I tune over it, it moves in the opposite direction > to VFO dialing direction! I turned everything off in the shack and > also selected the dummy load but it is still there. This ghost > signal is not audible on the K3 and only shows up as a 'signal on > the P3. I wonder if it is only my P3 that does this. > > Vidi - ZS1EL ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
